Wednesday, May 29, 2019

Weather Discussion for Wednesday May 29, 2019

Normal high/ low temperatures for May 27-June 3  (high/low) Redding 86/58, Chico 84/54, Quincy 76/40, Chester 73/39, Susanville 74/43, Grass Valley 75/50, Weaverville 79/42, Mt. Shasta 70/43 Yreka 76/43, Alturas 72/38

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

Today will start off sunny and then afternoon and evening cumulus clouds will form over the mountains with isolated showers and thundershowers possible.  There is a chance that in the late afternoon as the showers begin to dissipate one could move over the north valley.  Temperatures today will be near normal with light winds.

High pressure continues just off the west coast and this morning a weak upper level low is  forming over the Pacific Northwest and Canada.  This low will drop slowly southward and will be over Nevada and Southern California by the weekend (see map below).   Thursday ad Friday the low will provide more instability for afternoon and evening thunderstorms over the Northern California mountains and they will be more widespread. There is a chance of one moving over the valley in the late afternoons.  Temperatures Thursday and Friday will be slightly above normal with light winds.

Saturday and Sunday the afternoon and evening thunderstorms will continue over the mountains but they will be not as widespread as Thursday and Friday.

Next week the high will be along the coast and the low will be moving eastward.   The north state will be sunny with slightly above normal temperatures.

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Monday, May 27, 2019

Weather Discussion for Monday May 27, 2019

Normal high/ low temperatures for May 27-June 3  (high/low) Redding 86/58, Chico 84/54, Quincy 76/40, Chester 73/39, Susanville 74/43, Grass Valley 75/50, Weaverville 79/42, Mt. Shasta 70/43 Yreka 76/43, Alturas 72/38

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The low pressure area that moved through yesterday is now over the Southwestern U.S.   The counter clockwise flow around the low has pushed clouds over Northern California and showers will continue over the higher elevations north and east of Redding today. 

High pressure is building along the west coast and by the weekend will be along and over the west coast (see map below).   Most of the north state will be sunny but there will be some afternoon cloudiness over the mountains north and east of the valley with a chance of isolated showers through Friday.  The valley and the rest of the north state will be mostly sunny with temperatures warming to above normal by Thursday and continuing above normal through the weekend. 

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Saturday, May 25, 2019

Weather Discussion for Saturday May 25, 2019

Normal high/ low temperatures for May 20-May 27  (high/low) Redding 83/55, Chico 83/52, Quincy 74/39, Chester 70/37, Susanville 72/41, Grass Valley 74/48, Weaverville 78/41, Mt. Shasta 69/43 Yreka 74/42, Alturas 71/38

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The low pressure area over the Pacific Northwest continues to drop southward.   Late yesterday afternoon a portion of this low moved over Northern California.   Conditions were just right for severe thunderstorms to form.   The Redding area had large... over 1 1/2" hail and tornadoes.   The clouds looked like what you would see in the midwest.

The low will move across Northern California late today and Sunday and should bring showers and thunderstorms to all of the north state.   The low will be east of the area by early Monday and most of the showers will have ended.

Tuesday through next weekend we will have a high pressure ridge off the coast (see map below).   The valley will be mostly sunny but there will continue to afternoon and evening cumulus clouds and a few isolated thunderstorms over the mountains.

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Wednesday, May 22, 2019

Weather Discussion for Wednesday May 22, 2019

Normal high/ low temperatures for May 20-May 27  (high/low) Redding 83/55, Chico 83/52, Quincy 74/39, Chester 70/37, Susanville 72/41, Grass Valley 74/48, Weaverville 78/41, Mt. Shasta 69/43 Yreka 74/42, Alturas 71/38

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The low pressure area that brought showers to our area yesterday is moving eastward.   We will see decreasing clouds today with a few showers east of the Sierra Nevada Crest.  A weak high pressure ridge is along the coast and will hold there through Friday.  Thursday and most of the Friday the north state will see partly to mostly sunny skies with normal temperatures.  Gusty north winds will occur later today and Thursday. 

Late Friday an upper  level low pressure area will begin to drop southward across the Pacific Northwest and Oregon.   This low will be over Northern California Saturday and Sunday (see map below).   During this time we will have partly cloudy to cloudy skies with scattered showers and thunderstorms. 

The low will move east early Monday and nest week looks sunny with slightly above normal temperatures. 

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Monday, May 20, 2019

Weather Discussion for Monday May 20, 2019

Normal high/ low temperatures for May 20-May 27  (high/low) Redding 83/55, Chico 83/52, Quincy 74/39, Chester 70/37, Susanville 72/41, Grass Valley 74/48, Weaverville 78/41, Mt. Shasta 69/43 Yreka 74/42, Alturas 71/38

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

Clouds will increase later today as a low pressure area currently in the Gulf of Alaska drops southeastward.   This system will bring light rain or showers to Northern California tonight and Tuesday as it move eastward across our area.  Snow levels will be 5500 to 6500 feet.

Wednesday through Friday high pressure will be off the coast with a low pressure area over the Great Basin.  Most of the north state will be partly to mostly sunny,   However, there will be a few clouds and showers east of the Sierra Cascade Crest near the Nevada border.   Temperatures west of the crest will be near normal and gusty north winds are expected Wednesday and Thursday.

Saturday a low pressure area will drop southward from western Canada and will move across Northern California Saturday afternoon and Sunday (see map below).   Moisture is limited with this system and most of the showers will be over the mountains.

Early next week looks sunny with near normal temperatures.

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Saturday, May 18, 2019

Weather Discussion for Saturday May 18, 2019

Normal high/ low temperatures for May 13-May 20  (high/low) Redding 81/54, Chico 81/54, Quincy 73/38, Chester 69/35, Susanville 71/39, Grass Valley 72/46, Weaverville 77/40, Mt. Shasta 68/41 Yreka 73/41, Alturas 69/35

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The next low pressure area is approaching the coast and will spread rain over Northern California today and tonight with periods of rain or showers and a few thunderstorms Sunday.   Gusty south winds will precede this storm.  Snow level will drop to near 4500 feet by Sunday.

Monday we will have partly cloudy skies and then Monday night and Tuesday a low pressure area will drop southeastward along the coast and then inland over Northern California (see map below).  The north state will get scattered showers from this system with snow levels 5000 to 6000 feet.

Wednesday through next weekend high pressure will be along the coast with a low pressure area over the Great Basin.   The north state will see partly sunny skies with slightly below normal temperatures and periods of gusty north winds.

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Wednesday, May 15, 2019

Weather Discussion for Wednesday May 15, 2019

Normal high/ low temperatures for May 13-May 20  (high/low) Redding 81/54, Chico 81/54, Quincy 73/38, Chester 69/35, Susanville 71/39, Grass Valley 72/46, Weaverville 77/40, Mt. Shasta 68/41 Yreka 73/41, Alturas 69/35

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The first in a series of storms is now just off the coast and moving slowly eastward.  This system will bring rain, locally heavy, to Northern California today and Thursday.   Snow levels will be above 6000 feet and gusty south winds will occur in some areas.

Friday and the first half of Saturday we will see partly cloudy skies with scattered showers mainly over the mountains. The next low pressure area will move through Saturday afternoon through early Monday (see map below) with more light to moderate rain and isolated thunderstorms.  Snow levels will be around 5000 feet. 

There will be a brief break late Monday and then another storm system Tuesday and Wednesday.

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Monday, May 13, 2019

Weather Discusson for Monday May 13, 2019

Normal high/ low temperatures for May 13-May 20  (high/low) Redding 81/54, Chico 81/54, Quincy 73/38, Chester 69/35, Susanville 71/39, Grass Valley 72/46, Weaverville 77/40, Mt. Shasta 68/41 Yreka 73/41, Alturas 69/35

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

Big changes are coming in our weather.  The high pressure ridge that has been off the coast is weakening and moving eastward.  The jetstream across the Pacific is intensifying and pushing eastward.    This will lead to a low pressure trough along the coast with jetstream over Northern California from late Tuesday through early next week  (see map below).   During this time a series of frontal systems will bring rain...showers...and thunderstorms to Northern California.   Some areas of the north state will receive at least twice their normal May rainfall between Wednesday and the weekend.  

Today will be partly to mostly sunny with near normal temperatures.  Clouds increase Tuesday and late Tuesday a weakening frontal system will bring rain to the coast, coastal mountains, and areas north of Redding.  A stronger storm will move through Wednesday and Thursday with rain and possible thunderstorms.  Snow levels will be above 6000 feet.   Friday through Saturday midday we will have partly cloudy skies with scattered showers mainly over the mountains.   Another strong storm system will move through Saturday night through Monday.  Snow levels by late Sunday should be near 5000 feet.



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Saturday, May 11, 2019

Weather Discussion for Saturday May 11, 2019

Normal high/ low temperatures for May 6-May 13  (high/low) Redding 80/52, Chico 80/49, Quincy 71/37, Chester 66/33, Susanville 69/39, Grass Valley 70/45, Weaverville 75/39, Mt. Shasta 67/38, Yreka 72/38, Alturas 68/33

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

Cooler and even a little wetter weather is on the way.  The high pressure ridge that has been over and along the coast for the past couple of weeks is weakening and moving eastward.  Today and Sunday we will see sunny skies with temperatures about like yesterday.  Winds will be light.   Monday we will see further cooling and a few clouds in the afternoon as a weak frontal system approaches the coast.   Tuesday there is a chance of an afternoon shower near the the Oregon border.

Late Wednesday and Thursday a weak low pressure trough will be along and the coast and will move across the north state late Thursday and early Friday (see map below).  During this time Northern California will see partly cloudy skies with a few showers and thunderstorms over the foothills and mountains with a chance of a shower or thunderstorm in the valley.  Temperatures will cool to near normal.  

Next weekend look partly to mostly sunny with near normal temperatures.


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Wednesday, May 8, 2019

Weather Discussion for Wednesday May 8, 2019

Normal high/ low temperatures for May 6-May 13  (high/low) Redding 80/52, Chico 80/49, Quincy 71/37, Chester 66/33, Susanville 69/39, Grass Valley 70/45, Weaverville 75/39, Mt. Shasta 67/38, Yreka 72/38, Alturas 68/33

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

High pressure is off the coast and will hold there through Friday.  Northern California will be mostly sunny with temperatures 8 to 12 degrees above normal. Winds will be light.

Friday a low pressure area will drop southward from central Nevada and end up over Southern California for the weekend (see map below).  This low may bring a few clouds to areas along the California  Nevada border.   However, the rest of the north state will stay sunny with temperatures cooling a few degrees.  Gusty north winds will occur in some areas.

When you look at the map you notice the high has weakened and shifted eastward.   This weakening and eastward shift is forecast continue through next week and by Tuesday there is a low pressure trough along the coast with the jetstream over the north state.  Models are in agreement on this and if it does verify Tuesday through the end of next week will wetter and cooler than what you would expect for mid May.

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Monday, May 6, 2019

Weather Discussion for Monday May 6, 2019

Normal high/ low temperatures for May 6-May 13  (high/low) Redding 80/52, Chico 80/49, Quincy 71/37, Chester 66/33, Susanville 69/39, Grass Valley 70/45, Weaverville 75/39, Mt. Shasta 67/38, Yreka 72/38, Alturas 68/33

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The current weather pattern we are under shows little signs of changing.   Today high pressure is off the coast and a weak upper level low pressure area is over Southern California.   There will be some afternoon cumulus clouds today over the mountains with the chance of an isolated thunderstorm..  The valley stay mostly sunny.  Temperatures will be slightly above normal..  

Tuesday through Friday the high pressure ridge will be off the coast.  The northstate will be sunny with some afternoon mountain cumulus.   Temperatures will slowly warm to near 10 degrees above normal by Friday.  Winds will be light Tuesday and Wednesday with increasing north winds Thursday and Friday.

Another weak upper level low pressure area will form over Southern California by the weekend (see map below).  This could trigger some afternoon thunderstorms over the mountains east of the valley.  Temperatures will cool a few degrees.

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Saturday, May 4, 2019

Weather Discussion for Saturday May 4, 2019

Normal high/ low temperatures for Apr 29-May 6  (high/low) Redding 79/51, Chico 79/48, Quincy 70/36, Chester 64/32, Susanville 67/36, Grass Valley 68/44, Weaverville 73/36, Mt. Shasta 66/38, Yreka 69/38, Alturas 65/32

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

The high pressure ridge is off the coast and will remain there for at least the next week.   However, if you look at this mornings's satellite picture (below) you can see a weak upper level low pressure area moving under the high pressure ridge and toward Southern California.  This low will move across Southern California Sunday afternoon and Monday.  Today we will have sunny skies, temperatures will be a few degrees above normal and winds will be light.  Sunday and Monday there will be a few clouds mainly over the foothills and mountains with isolated afternoon and evening thunderstorms over the mountains.   Temperatures will cool and will back to near normal by Monday.

Tuesday through next weekend we will have sunny skies with daytime temperatures 4 to 8 degrees above normal.  Light to moderate north winds are expected. 

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Wednesday, May 1, 2019

Weather Discussion for Wednesday May 1, 2019

Normal high/ low temperatures for Apr 29-May 6  (high/low) Redding 79/51, Chico 79/48, Quincy 70/36, Chester 64/32, Susanville 67/36, Grass Valley 68/44, Weaverville 73/36, Mt. Shasta 66/38, Yreka 69/38, Alturas 65/32

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

A high pressure ridge is just off the west coast and will hold there for at least the next week.   Sunday and Monday a weak upper level low pressure area will move under the high pressure area and into Southern California (see map below).  Northern California will be mostly sunny with a few clouds Sunday and Monday as the low moves by to our south.   There could be isolated showers over the Sierra from Mt Lassen southward.   Temperatures will continue a few degrees above normal and winds will be mostly light.....Short version...nice spring weather for the next week.

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